MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: moukie on July 07, 2018, 09:37:50 AM

Title: oil visible on front grill
Post by: moukie on July 07, 2018, 09:37:50 AM
After a drive yesterday I noticed the bottom of the honeycomb front grill was damp with some oil ? Has anyone else experienced this, not sure where it has come from ?
Title: Re: oil visible on front grill
Post by: DavGTI on July 07, 2018, 12:35:30 PM
Yes, I was doing an oil and filter change last Saturday and noticed some oil around that area and on top of the under tray. After a good look around I noticed drivers side of the intercooler had some oil around the pipe I suspect that’s where mines has came from. Quick google search shows this is quite common for these cars and O rings need replaced. So that’s what I’m going to try first. Was supposed to get them and do that today but other things have came up unfortunately. It’ll be a job for next Saturday. Mines isn’t to bad just a fair bit of residue although not leaking on to the drive way.
Title: Re: oil visible on front grill
Post by: Pudding on July 07, 2018, 01:30:19 PM
If the oil is on the upper half of the front grille, I'd be looking for an intercooler leak.   If it's on the lower portion, probably just intercooler O rings as above.  Under boost, a thin mist of oil can escape past the O rings, similar to piston ring blow-by.
Title: Re: oil visible on front grill
Post by: moukie on July 09, 2018, 10:30:02 PM
Thanks for the fast replies ! The oil isn’t on the lower part of the grill so I will have a look at the inter cooler I-ring thanks that’s super helpful.
Title: Re: oil visible on front grill
Post by: moukie on July 11, 2018, 12:50:25 PM
Does anyone have a guide for fitting the o-ring or can point me to one on the forum?